I think this sounds worse then it is. If I am correct then the part hanging down is just the under-body shroud that will get hung up on curbs due to the front end hanging low. It can be secured back in place but normally some of the clips will be broken. Your wife will just have to get used to stopping before the curb so that the bumper doesn't actually go over it.
As for the leak, I am not sure I understand but did you get that resolved or not?
The cooling fans staying on may be due to a sensor being damaged but let's get some pictures of the issues and go from there.
Also we need to check for codes just to make sure we are going in the right direction.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
Thanks
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Monday, August 31st, 2020 AT 6:24 PM